Tiddles, the station cat at Newport, Monmouthshire, is given a hand with her five new kittens by the railway guards, 1937.

Tiddles, the station cat at Newport, Monmouthshire, is given a hand with her five new kittens by the railway guards, 1937.

Photo: Fox Photos, Getty Images

Tiddles, the station cat at Newport, Monmouthshire, is given a... Photo-4230454.57185 - Houston Chronicle

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Whisky the cat was 'babysitting' for young Jaqueline Hewitt's doll, but found it so comfortable in the pram that he fell asleep on the job, 1954.

Whisky the cat was 'babysitting' for young Jaqueline Hewitt's doll, but found it so comfortable in the pram that he fell asleep on the job, 1954.

Photo: Fox Photos, Getty Images

Whisky the cat was 'babysitting' for young Jaqueline... Photo-4230455.57185 - Houston Chronicle

Image 26 of 42

A kitten hangs from a fallen Christmas tree while another sits in the wrapping of the presents below, 1945.

A kitten hangs from a fallen Christmas tree while another sits in the wrapping of the presents below, 1945.

Photo: Lambert, Getty Images

A kitten hangs from a fallen Christmas tree while another sits in... Photo-4230456.57185 - Houston Chronicle

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Dinner time is tough for little one year old David Cawley who has to contend with wild animals in order to get his food in 1967. His father Mr Cawley is a manager of a Lion Reserve and is temporarily raising this orphaned lion cub. less

Dinner time is tough for little one year old David Cawley who has to contend with wild animals in order to get his food in 1967. His father Mr Cawley is a manager of a Lion Reserve and is temporarily raising ... more

Photo: Ian Tyas, Getty Images

Dinner time is tough for little one year old David Cawley who has... Photo-4230458.57185 - Houston Chronicle

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A stray kitten is bound for the Lynton and Lynmouth district of Devon in 1952.

A stray kitten is bound for the Lynton and Lynmouth district of Devon in 1952.

Photo: Keystone, Getty Images

A stray kitten is bound for the Lynton and Lynmouth district of... Photo-4230461.57185 - Houston Chronicle

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A kitten in a basket, 1932.

A kitten in a basket, 1932.

Photo: Frances Partridge, Getty Images

A kitten in a basket, 1932. Photo-4230462.57185 - Houston Chronicle

Image 30 of 42

Eight week old tiger cubs belonging to Ranee, a tiger at Whipsnade Zoo in 1937.

Eight week old tiger cubs belonging to Ranee, a tiger at Whipsnade Zoo in 1937.